sharednero.blogg.se - Cornus mas in leaf

#CORNUS MAS IN LEAF FREE#

A bacterium was isolated from infected plants and tested for pathogenicity on C.

#CORNUS MAS IN LEAF FREE#

Disease symptoms were restricted to early spring during wet and cool weather later in the season new growth was free of symptoms. These lesions eventually coalesced to form large dark necrotic patches that covered a large portion of the leaf or the entire leaf. In early stages, leaf infection consisted of discrete lesions, angular in shape and surrounded by a chlorotic halo. The disease affected mostly leaves and young shoots, causing dark brown necrotic lesions and some die back. mas plants within the nursery and has caused severe damage for three consecutive years.

In Tennessee, a leaf blight was first observed during spring 1996 in nursery plants imported from Europe.

Cornellian cherry has demonstrated longevity and adaptability and has had no previous disease or pest problems. 'Spring Glow' and 'Spring Sun' (also listed as 'Spring Grove') - Two cultivars that exhibit overall fine characteristics, with handsome foliage, rounded habit and bright yellow blooms.Cornellian cherry (Cornus mas) is an enduring dogwood that is primarily grown as an ornamental plant in North America, but in parts of Europe, its fruit is eaten fresh or pickled or made into soft drinks, wine, and liqueur. Widely available, though probably not as hardy as other forms. 'Golden Glory' - An upright form that is a heavy bloomer. 'Flava' - A form that features fruit that is yellow and ripens a bit ahead of other types. The plant is much smaller and weaker than other forms. The leaves are edged with pink or yellow, though the color loses brilliance later in the season. 'Elegantissima' (also listed as 'Aureo-elegantissima', 'Tricolor' may be the same) - A striking variegated form that is gaining popularity. These three cultivars are notable for their heavy fruit set of fruit, which may be used for preserves, syrup, etc. mas is a edible food crop in many European areas, and its use as a culinary plant is increasing in this country. The leaves will age to green in warm weather climates, however. 'Aurea' - A yellow-foliage form that is very hardy.

branching to the ground prevents turf growth beneath unless limbed up.

works well in small groupings or groves.

multiseasonal for flowers good quality summer foliage, fruit and bark.

can be trimmed up at the base to make more tree-like and reveal the exfoliating bark better.

prefers moist, rich, well-drained soil, but relatively adaptable.

fairly easy to transplant, but can be slow to reestablish.

not stunning, but relatively attractive.

can be eaten when color becomes dark red or maroon.

between 0.5" to 1" long and about 0.5" wide.

flowers are best viewed against a dark background.

for the early bloom time, flowering is quite showy.

small yellow flowers in rounded clusters.

mostly a mix of green and yellow with some purple-red highlights.

overall, summer foliage is of high quality.

leaves are 2" to 4" long and 0.75" to 1.5" wide.

branching is low branches hovering just above the ground.

typically multistemmed with a very short main trunk.

native to central and southern Europe and parts of western Asia.